Dec 02 18:33:29.839 INFO testing rustc-ap-rustc_cratesio_shim-297.0.0 against master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61 for beta-1.31-5
Dec 02 18:33:29.839 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.31-5/worker-6/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/beta-1.31-5/master#8940af3cea4a9a9deabcaf843b2f8cad9a83fc61:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +8940af3cea4a9a9deabcaf843b2f8cad9a83fc61-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 02 18:33:30.260 INFO [stdout] 89b5c437b1720a12db7eaf1675b48a30cf4e06098c4ca7871c58ffca1ff7a70f
Dec 02 18:33:30.263 INFO running `"docker" "start" "-a" "89b5c437b1720a12db7eaf1675b48a30cf4e06098c4ca7871c58ffca1ff7a70f"`
Dec 02 18:33:31.751 INFO [stderr] usermod: no changes
Dec 02 18:33:31.816 INFO [stderr]    Compiling rustc-ap-rustc_cratesio_shim v297.0.0 (/source)
Dec 02 18:33:32.447 INFO [stderr] error[E0554]: #![feature] may not be used on the beta release channel
Dec 02 18:33:32.447 INFO [stderr]   --> src/lib.rs:14:1
Dec 02 18:33:32.447 INFO [stderr]    |
Dec 02 18:33:32.447 INFO [stderr] 14 | #![feature(nll)]
Dec 02 18:33:32.447 INFO [stderr]    | ^^^^^^^^^^^^^^^^
Dec 02 18:33:32.447 INFO [stderr] 
Dec 02 18:33:32.447 INFO [stderr] error: aborting due to previous error
Dec 02 18:33:32.447 INFO [stderr] 
Dec 02 18:33:32.447 INFO [stderr] For more information about this error, try `rustc --explain E0554`.
Dec 02 18:33:32.447 INFO [stderr] error: Could not compile `rustc-ap-rustc_cratesio_shim`.
Dec 02 18:33:32.447 INFO [stderr] 
Dec 02 18:33:32.447 INFO [stderr] To learn more, run the command again with --verbose.
Dec 02 18:33:32.450 INFO [stderr] su: No module specific data is present
Dec 02 18:33:33.151 INFO running `"docker" "inspect" "89b5c437b1720a12db7eaf1675b48a30cf4e06098c4ca7871c58ffca1ff7a70f"`
Dec 02 18:33:33.504 INFO running `"docker" "rm" "-f" "89b5c437b1720a12db7eaf1675b48a30cf4e06098c4ca7871c58ffca1ff7a70f"`
Dec 02 18:33:33.719 INFO [stdout] 89b5c437b1720a12db7eaf1675b48a30cf4e06098c4ca7871c58ffca1ff7a70f